My friend is wanting to begin putting real mods on his 99 2 door tahoe, 5.7. He is going to be buying a Super charger at the end of the summer. Which kit should he go with, and what mods should he do now to compliment the power adder. He has some small mods now...hypertech and i think dynomax cat back. Im very much new to the after market for tahoes.

TIA guys.